Contest idea: DIY time trial. Fastest GPS track wins

Gary Mortimer has a good idea: a DIY time trial contest, where you time your UAV flying autonomously over an agreed-upon course. You upload GPS track, time and, onboard video. Fastest time each month wins something cool that I'll donate (like a Funjet kit).

What kind of course would work best for this? For starters, how about this: a square, 400m on a side. Must complete three full circuits in fully autonomous mode. Carry an onboard GPS datalogger or datalog from your telemetry stream and upload the file (so people can see timestamps).

How does that sound?

(pic stolen from Gary's comment below)

Views: 280

Comment by Gian Carlo M. on July 29, 2009 at 9:17pm
Chris, since environmental conditions can have an impact on the results, how about a "regularity competition" (or something like that).
The UAV that flies the course closest to the determined time wins. That way the pilot has to take into account his UAV parameters, the weather, etc.
Just an idea.
Comment by Patrick Mccabe on July 29, 2009 at 9:34pm
Great idea now i just need a working UAV lol. Im thinking maybe next week mine will be built. But then i guess we need telemetry or a logger which i dont have :(.

Moderator
Comment by Gary Mortimer on July 29, 2009 at 11:09pm
I was thinking figure eight. Actually its the square Chris mentioned when I think about it. Except with a centre point. Prizes are not needed I think Chris, its the honour! As for data logging, well we could just ask for honesty and a well documented flight, perhaps video to take place of data logging. All in all, it should be fun. Perhaps proof of a picnic needs to be part of the documentation as well!

3D Robotics
Comment by Chris Anderson on July 29, 2009 at 11:10pm
I think for starters, we'll just say fastest time wins. Maybe later we can tweak with "closest to given time" and other variations. I've got a Funjet kit, new in box, for the first month's prize.

Moderator
Comment by Gary Mortimer on July 29, 2009 at 11:53pm
Well lets see who enters, should be fun and a prize to boot!!!

Maybe, as its fast approaching it should start on Aug 1st and then run monthly from there.

T3
Comment by Krzysztof Bosak on July 30, 2009 at 2:07am
I don;t care about funjet, but otherwise, if I shoudl have ANY chance with EasyStar just on trying that, I must insist on halving the size and demanding 'flight pattern must not loop', otherwise anything that just makes absurdally fast passes will win.
I suggest defining:
-Disqualifying altitude band of +/-10m (this wil rule out some crasily overpowered setups with poor tuning)
-Disqualified when further to target waypoint than to any other waypoint (excludes recently satisfied waypoint)
-Max external overshot for each waypoint (Turn 1 for exaple) not further NE than half of the smallest interwaypoint distance on the pattern, in this case max sqrt(2)*200/2=141m as this is the dist between Centre and Turn1 by two.
-All waypoints visited in order

Let's make it clear:
40-50kmh easystar will lose with funjet on that course because of the long legs alone.
Showing control on long straights is nothing. Well, almost.

Also consider how ppl will be tuning their funjets for this course. They will be failing miserably at sqrt(2)*200=282m+satisfy dist range from takeoff point! This is at the edge of visual identifiability for flat, small fast models. The autopilots will survive, mutliplex platfrom will not... Any economical reason for the course?

How about X pattern? more time spent overhead, 180 deg and 90 deg turns...
Or maybe a compromise: 250...300m pattern height, and once the ppl start attending, define O, 8, X pattern classes in increasing order of turn preference (4x90deg, 4x135, 4x90+4x180). X is the only one that promotes different corner angles.

T3
Comment by Ios on July 30, 2009 at 4:11am
This is a fantastic idea! Krysztof is right though that an EasyStar wouldn't have a chance against a FunJet. I personaly don't mind going with fastest times, but I think a points based system would also work,.. say following a pattern (say a dogbone pattern - http://www.rcgroups.com/forums/attachment.php?attachmentid=2459580 of given dimentions) and getting one point for each waypoint you reach/hit, an additional five points for each complete lap and if you miss a waypoint loosing 2 points. Or something like that - this would obviously showcase the plane's endurance rather than speed,..

In any case, as the others said, I don't care so much for a prize, but this would be a terrific monthly challenge. (but how do we know the flight was done that month ??)

Where do I sign up?

Fantastic idea Gary :)

T3
Comment by Krzysztof Bosak on July 30, 2009 at 4:19am
The problem with dogbone is that is not testing much more than X course, but is quite large on the terrain. A diamong with a leg would do almost the same with the advantage of 180deg turn test..
Makng it montly is not very cool as ther will be winter vs summe periodic issue. We dont have enough participants to run more than running contest counting 3 best achievements, I think.

T3
Comment by Ios on July 30, 2009 at 4:25am
Any pattern would be fine with me, either way I think this is a really cool idea. :)
By the way,... I've responded to your post to me on RCGs Krzysztof :)

Moderator
Comment by Gary Mortimer on July 30, 2009 at 6:49am
Well lets just do something, and make it really simple so that the maximum number of people can try and maybe just getting around the course is enough!!

If somebody can get around quick with a funjet or wing then good luck to them!!

I think you just signed up IOS, looking forward to your August time, after all your not busy with anything at the minute.

Cheers

G

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